Home / 30,935.18-42,690.67-16,788.03

Finding the Fourth Proportional to 30,935.18, 42,690.67 and 16,788.03

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Solution

The fourth proportional to 30,935.18, 42,690.67 and 16,788.03 is: 23,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.18 : 42,690.67 = 16,788.03 : x
  2. Step 2: Convert to fraction form
    30,935.18/42,690.67 = 16,788.03/x
  3. Step 3: Cross multiply
    30,935.18x = 42,690.67 × 16,788.03
  4. Step 4: Simplify right side
    30,935.18x = 716,692,046.62
  5. Step 5: Solve for x
    x = 716,692,046.62/30,935.18
  6. Step 6: Final answer
    x = 23,167.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.